Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:23:00 2012

Optimize a model with 269 rows, 204 columns and 874 nonzeros
Presolve time: 0.00s
Presolved: 269 rows, 204 columns, 874 nonzeros
Variable types: 0 continuous, 204 integer (204 binary)
Found heuristic solution: objective 58.0000000

Root relaxation: objective 0.000000e+00, 107 iterations, 0.00 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    0.00000    0   70   58.00000    0.00000   100%     -    0s
H    0     0                      47.0000000    0.00000   100%     -    0s
     0     0    0.53086    0   73   47.00000    0.53086  98.9%     -    0s
H    0     0                      45.0000000    0.53086  98.8%     -    0s
     0     0    0.66184    0   74   45.00000    0.66184  98.5%     -    0s
     0     0    0.66667    0   73   45.00000    0.66667  98.5%     -    0s
H    0     0                      44.0000000    0.66667  98.5%     -    0s
     0     0    0.66667    0   73   44.00000    0.66667  98.5%     -    0s
     0     0    0.66667    0   73   44.00000    0.66667  98.5%     -    0s
H    0     0                      43.0000000    0.66667  98.4%     -    0s
     0     2    0.70347    0   73   43.00000    0.70347  98.4%     -    0s
*   24    23              14      27.0000000    4.07692  84.9%  28.9    0s
*   94    53              14      26.0000000    8.00000  69.2%  25.4    0s
*  160    66              12      25.0000000   11.63158  53.5%  23.8    0s
*  181    68              14      24.0000000   11.64286  51.5%  23.0    0s
*  317    63               9      23.0000000   13.84615  39.8%  21.8    0s

Cutting planes:
  Gomory: 1
  Zero half: 4

Explored 601 nodes (12656 simplex iterations) in 0.45 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%